[Bluegrasses: The Genus Poa West of the Cascade Mountains of Oregon and Washington]

Annual Bluegrass

Poa annua

Synonyms: Poa annua var. aquatica, Poa annua var. reptans

Inflorescence of Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans)

Close-up view of the inflorescence of annual bluegrass as seen at the parking area for Catherine Creek, Columbia River Gorge...............May 20, 2011.

Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans) - Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans) - Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans)

Additional photos of annual bluegrass as seen at the parking area for Catherine Creek, Columbia River Gorge...............May 20, 2011.

Inflorescence of Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans) - Inflorescence of Annual Bluegrass: Poa annua (Synonyms: Poa annua var. aquatica, Poa annua var. reptans)

Additional close-up photos of the inflorescence of annual bluegrass as seen along the Springwater Trail at the southeastern corner of Powell Butte to the west of Gresham, OR.................May 23, 2011.

Paul Slichter